Integrated double-cylinder nitrogen shock absorber structure

Abstract

The utility model discloses an integrated double-cylinder nitrogen shock absorber structure which comprises an outer oil storage cylinder and an inner oil storage cylinder, the outer oil storage cylinder is sleeved outside the inner oil storage cylinder, an oil storage groove is formed between the outer oil storage cylinder and the inner oil storage cylinder, an oil passing hole is formed in the inner wall of the inner oil storage cylinder and communicated with the oil storage groove, and a sealing assembly is arranged at one end of the outer oil storage cylinder. One end of the oil storage inner cylinder is provided with a piston, the other end of the oil storage inner cylinder is provided with a valve seat, the valve seat is internally provided with a compression high-speed valve system for sealing the oil storage inner cylinder, the valve seat is externally provided with a compression regulating valve assembly, the valve seat is internally provided with a buffer cavity, the buffer cavity is communicated with the oil storage inner cylinder and the compression regulating valve assembly, and the buffer cavity is internally provided with a floating piston; the buffering cavity is sealed through a lower connecting fork assembly. According to the utility model, the adjustability of the damping force value of the low-speed section can be met, the damping force value of the low-speed section is reduced, and the comfort of paving a road surface or a road surface with small vibration is met; and the large-damping-force-value requirement of the extreme cross-country working condition can be met, and the advantages of being fast in pressure building, high in universality and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an integrated double-tube nitrogen shock absorber structure. Background Art

[0002] Shock absorbers are typically installed on vehicles to accelerate the attenuation of frame and body vibrations, improving ride smoothness. They also dampen road impacts when navigating uneven surfaces, enhancing the vehicle's driving performance. However, to meet extreme off-road requirements, the damping force often needs to be increased, passively increasing the damping force at low speeds, sacrificing comfort on paved roads. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated double-tube nitrogen shock absorber structure in response to the defects and shortcomings of the existing technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an integrated double-tube nitrogen shock absorber structure, the innovation of which is that it includes an oil storage outer tube and an oil storage inner tube, and the oil storage outer tube is sleeved on the outside of the oil storage inner tube, and an oil storage tank is formed between the two, an oil hole is opened on the inner wall of the oil storage inner tube and connected to the oil storage tank, a sealing assembly is provided at one end of the oil storage outer tube, and a valve seat is provided at the other end thereof, a compression high-speed valve system is provided inside the valve seat to seal the oil storage inner tube, a compression regulating valve assembly is provided outside the valve seat, and a buffer chamber is also provided inside the valve seat, the buffer chamber is connected to the oil storage inner tube and the compression regulating valve assembly, a floating piston is provided inside the buffer chamber, and the buffer chamber is sealed by a lower connecting fork assembly, a piston rod is provided in the oil storage inner tube, a piston valve system assembly is provided at one end of the piston rod, and the other end thereof passes through the sealing assembly and is provided with an upper connecting seat.

[0005] Furthermore, a buffer block is provided on the outside of the piston rod, and the buffer block is located below the upper connecting seat.

[0006] After adopting the above structure, the beneficial effects of the utility model are:

[0007] The utility model can not only meet the adjustability of the damping force value in the low-speed section, reduce the damping force value in the low-speed section, and meet the comfort requirements on paved roads or roads with small vibrations; it can also meet the large damping force value requirements of extreme off-road conditions, and has the characteristics of fast pressure building and strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural diagram of the present utility model.

[0009] Description of reference numerals:

[0010] 1 Oil storage outer cylinder, 2 Oil storage inner cylinder, 3 Oil storage tank, 4 Oil hole, 5 Sealing assembly, 6 Valve seat, 7 Compression high-speed valve system, 8 Compression regulating valve assembly, 9 Buffer chamber, 10 Floating piston, 11 Lower connecting fork assembly, 12 Piston rod, 13 Piston valve system assembly, 14 Upper connecting seat, 15 Buffer block. DETAILED DESCRIPTION

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0013] See Figure 1 , an integrated double-tube nitrogen shock absorber structure, including an oil storage outer tube 1 and an oil storage inner tube 2, and the oil storage outer tube 1 is sleeved on the outside of the oil storage inner tube 2, and an oil storage tank 3 is formed between the two, and an oil hole 4 is opened on the inner wall of the oil storage inner tube 2 to communicate with the oil storage tank 3, a sealing component 5 is provided at one end of the oil storage outer tube 1, and a valve seat 6 is provided at the other end thereof, a compression high-speed valve system 7 is provided inside the valve seat 6 to seal the oil storage inner tube 2, a compression regulating valve assembly 8 is provided outside the valve seat 6, and a buffer chamber 9 is also provided inside the valve seat 6, which is communicated with the oil storage inner tube 2 and the compression regulating valve assembly 8, a floating piston 10 is provided inside the buffer chamber 9, and the buffer chamber 9 is sealed by a lower connecting fork assembly 11, a piston rod 12 is provided in the oil storage inner tube 2, a piston valve system assembly 13 is provided at one end of the piston rod 12, and the other end thereof passes through the sealing component 5, and is provided with an upper connecting seat 14. Specifically, an oil storage inner cylinder 2 is provided, and an oil hole 4 is opened on the inner wall of the oil storage inner cylinder 2 at a corresponding distance from the piston valve system assembly 13 according to the commonly used stroke under fine vibration conditions. During low-speed movement, oil flows out from the side of the inner cylinder and flows to the compression high-speed valve system 7; when the piston valve system assembly 13 exceeds the empty space of the inner cylinder, the compression high-speed valve system 7 quickly establishes a damping force value under the action of the buffer chamber 9 and the floating piston 10 to meet the needs of extreme off-road conditions; at the same time, the oil pressure can be adjusted by the compression regulating valve assembly 8 to meet different working conditions.

[0014] In this embodiment, a buffer block 15 is provided on the outside of the piston rod 12 and is located below the upper connecting seat 14. The buffer block 15 buffers the movement of the upper connecting seat 14 to avoid noise and damage to the sealing assembly 5.

[0015] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An integrated double-tube nitrogen shock absorber structure, characterized by: It includes an outer oil storage cylinder and an inner oil storage cylinder, and the outer oil storage cylinder is sleeved on the outside of the inner oil storage cylinder, and an oil storage tank is formed between the two. An oil hole is opened on the inner wall of the inner oil storage cylinder to communicate with the oil storage tank. A sealing assembly is provided at one end of the outer oil storage cylinder, and a valve seat is provided at the other end thereof. A compression high-speed valve system is provided inside the valve seat to seal the inner oil storage cylinder. A compression regulating valve assembly is provided outside the valve seat, and a buffer chamber is also provided inside the valve seat. The buffer chamber is communicated with the inner oil storage cylinder and the compression regulating valve assembly. A floating piston is provided inside the buffer chamber, and the buffer chamber is sealed by a lower connecting fork assembly. A piston rod is provided in the inner oil storage cylinder, a piston valve system assembly is provided at one end of the piston rod, and the other end thereof passes through the sealing assembly, and an upper connecting seat is provided.

2. The integrated double-tube nitrogen shock absorber structure according to claim 1, characterized in that: A buffer block is arranged on the outside of the piston rod and is located below the upper connecting seat.

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